All original IT effects in portmod. Handle S6x in timing code.

1 files changed, 193 insertions, 10 deletions

diff --git a/src/portmod.rs b/src/portmod.rs
index 52c27ee..125fdab 100644
--- a/src/portmod.rs
+++ b/src/portmod.rs
@@ -1,14 +1,65 @@
+pub enum Slide
+{
+    Up(u8),
+    Down(u8),
+    FineUp(u8),
+    FineDown(u8)
+}
+
 pub enum Effect
 {
     SetSpeed(u8),
     PosJump(u8),
     PattBreak(u8),
+    SetVolume(u8),
+    VolumeSlide(Slide),
+    PortaDown(u8),
+    PortaFineDown(u8),
+    PortaExFineDown(u8),
+    PortaUp(u8),
+    PortaFineUp(u8),
+    PortaExFineUp(u8),
+    TonePorta(u8),
+    Vibrato(u8, u8),
+    Tremor(u8, u8),
+    Arpeggio(u8, u8),
+    VolumeSlideVib(Slide),
+    VolumeSlideTPorta(Slide),
+    SetChannelVolume(u8),
+    ChVolSlide(Slide),
+    SampleOffset(u8),
+    PanSlide(Slide),
+    Retrigger(u8, u8),
+    Tremolo(u8, u8),
+    GlissandoCtrl(bool),
+    SetFinetune(u8),
+    SetVibWaveform(u8),
+    SetTremWaveform(u8),
+    SetPanWaveform(u8),
+    RowExtention(u8),
+    VirtChanOp(u8),
+    NNAOverride(u8),
+    VolumeEnvEnable(bool),
+    PanEnvEnable(bool),
+    PitchEnvEnable(bool),
+    SoundCtrl(u8),
+    SampleOffsetHigh(u8),
     PattLoopStart,
     PattLoop(u8),
+    NoteCut(u8),
+    NoteDelay(u8),
     PattDelay(u8),
+    SetActiveMacro(u8),
     SetTempo(u8),
     TempoSlideDown(u8),
     TempoSlideUp(u8),
+    VibFine(u8, u8),
+    SetGlobalVolume(u8),
+    GlobalVolumeSlide(Slide),
+    SetPan(u8),
+    AutoPan(u8, u8),
+    MidiMacro(u8),
+    SmoothMidiMacro(u8),
     NoEffect
 }
 
@@ -17,17 +68,149 @@ impl Effect
     pub fn from_it_efx(f: (u8, u8)) -> Effect
     {
         let (efx, fxp) = f;
-        match (efx as char, fxp)
+        match efx as char
+        {
+            'A' => Effect::SetSpeed(fxp),
+            'B' => Effect::PosJump(fxp),
+            'C' => Effect::PattBreak(fxp),
+            'D' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::VolumeSlide(Slide::Down(y)),
+                    (x, 0) => Effect::VolumeSlide(Slide::Up(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::VolumeSlide(Slide::FineDown(y)),
+                    (x, 0xf) => Effect::VolumeSlide(Slide::FineUp(x)),
+                    _ => Effect::NoEffect
+                },
+            'E' =>
+                match fxp & 0xf0
+                {
+                    0xF0 => Effect::PortaFineDown(fxp & 0x0f),
+                    0xE0 => Effect::PortaExFineDown(fxp & 0x0f),
+                    _ => Effect::PortaDown(fxp)
+                },
+            'F' =>
+                match fxp & 0xf0
+                {
+                    0xF0 => Effect::PortaFineUp(fxp & 0x0f),
+                    0xE0 => Effect::PortaExFineUp(fxp & 0x0f),
+                    _ => Effect::PortaUp(fxp)
+                },
+            'G' => Effect::TonePorta(fxp),
+            'H' => Effect::Vibrato(fxp >> 8, fxp & 0x0f),
+            'I' => Effect::Tremor(fxp >> 8, fxp & 0x0f),
+            'J' => Effect::Arpeggio(fxp >> 8, fxp & 0x0f),
+            'K' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::VolumeSlideVib(Slide::Down(y)),
+                    (x, 0) => Effect::VolumeSlideVib(Slide::Up(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::VolumeSlideVib(Slide::FineDown(y)),
+                    (x, 0xf) => Effect::VolumeSlideVib(Slide::FineUp(x)),
+                    _ => Effect::NoEffect
+                },
+            'L' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::VolumeSlideTPorta(Slide::Down(y)),
+                    (x, 0) => Effect::VolumeSlideTPorta(Slide::Up(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::VolumeSlideTPorta(Slide::FineDown(y)),
+                    (x, 0xf) => Effect::VolumeSlideTPorta(Slide::FineUp(x)),
+                    _ => Effect::NoEffect
+                },
+            'M' => Effect::SetChannelVolume(fxp),
+            'N' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::ChVolSlide(Slide::Down(y)),
+                    (x, 0) => Effect::ChVolSlide(Slide::Up(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::ChVolSlide(Slide::FineDown(y)),
+                    (x, 0xf) => Effect::ChVolSlide(Slide::FineUp(x)),
+                    _ => Effect::NoEffect
+                },
+            'O' => Effect::SampleOffset(fxp),
+            'P' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::PanSlide(Slide::Up(y)),
+                    (x, 0) => Effect::PanSlide(Slide::Down(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::PanSlide(Slide::FineUp(y)),
+                    (x, 0xf) => Effect::PanSlide(Slide::FineDown(x)),
+                    _ => Effect::NoEffect
+                },
+            'Q' => Effect::Retrigger(fxp >> 8, fxp & 0x0f),
+            'R' => Effect::Tremolo(fxp >> 8, fxp & 0x0f),
+            'S' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0x1, e) => Effect::GlissandoCtrl(e != 0),
+                    (0x2, t) => Effect::SetFinetune(t),
+                    (0x3, w) => Effect::SetVibWaveform(w),
+                    (0x4, w) => Effect::SetTremWaveform(w),
+                    (0x5, w) => Effect::SetPanWaveform(w),
+                    (0x6, d) => Effect::RowExtention(d),
+                    (0x7, x @ 0..=2) => Effect::VirtChanOp(x),
+                    (0x7, x @ 3..=6) => Effect::NNAOverride(x - 3),
+                    (0x7, x @ 7..=8) => Effect::VolumeEnvEnable(x == 8),
+                    (0x7, x @ 9..=10) => Effect::PanEnvEnable(x == 10),
+                    (0x7, x @ 11..=12) => Effect::PitchEnvEnable(x == 10),
+                    (0x8, p) => Effect::SetPan(p * (255 / 15)),
+                    (0x9, c) => Effect::SoundCtrl(c),
+                    (0xa, o) => Effect::SampleOffsetHigh(o),
+                    (0xb, 0x0) => Effect::PattLoopStart,
+                    (0xb, r) => Effect::PattLoop(r),
+                    (0xc, t) => Effect::NoteCut(t),
+                    (0xd, t) => Effect::NoteDelay(t),
+                    (0xe, d) => Effect::PattDelay(d),
+                    (0xf, m) => Effect::SetActiveMacro(m),
+                    _ => Effect::NoEffect
+                },
+            'T' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0x0, v) => Effect::TempoSlideDown(v),
+                    (0x1, v) => Effect::TempoSlideUp(v),
+                    _ => Effect::SetTempo(fxp)
+                },
+            'U' => Effect::VibFine(fxp >> 8, fxp & 0x0f),
+            'V' => Effect::SetGlobalVolume(fxp),
+            'W' =>
+                match (fxp >> 8, fxp & 0x0f)
+                {
+                    (0, y) => Effect::GlobalVolumeSlide(Slide::Down(y)),
+                    (x, 0) => Effect::GlobalVolumeSlide(Slide::Up(x)),
+                    (0xf, 0xf) => Effect::NoEffect,
+                    (0xf, y) => Effect::GlobalVolumeSlide(Slide::FineDown(y)),
+                    (x, 0xf) => Effect::GlobalVolumeSlide(Slide::FineUp(x)),
+                    _ => Effect::NoEffect
+                },
+            'X' => Effect::SetPan(fxp),
+            'Y' => Effect::AutoPan(fxp >> 8, fxp & 0x0f),
+            'Z' => Effect::MidiMacro(fxp),
+            '\\' => Effect::SmoothMidiMacro(fxp),
+            _ => Effect::NoEffect
+        }
+    }
+    pub fn from_it_vol(v: u8) -> Effect
+    {
+        const GMAP: [u8; 10] = [0x00, 0x01, 0x04, 0x08, 0x10, 0x20, 0x40, 0x60, 0x80, 0xFF];
+        match v
         {
-            ('A', _) => Effect::SetSpeed(fxp),
-            ('B', _) => Effect::PosJump(fxp),
-            ('C', _) => Effect::PattBreak(fxp),
-            ('S', 0xb0) => Effect::PattLoopStart,
-            ('S', _) if fxp & 0xf0 == 0xb0 => Effect::PattLoop(fxp & 0x0f),
-            ('S', _) if fxp & 0xf0 == 0xe0 => Effect::PattDelay(fxp & 0x0f),
-            ('T', _) if fxp & 0xf0 == 0x00 => Effect::TempoSlideDown(fxp & 0x0f),
-            ('T', _) if fxp & 0xf0 == 0x10 => Effect::TempoSlideUp(fxp & 0x0f),
-            ('T', _) => Effect::SetTempo(fxp),
+            0..=64 => Effect::SetVolume(v),
+            65..=74 => Effect::VolumeSlide(Slide::FineUp(v - 65)),
+            75..=84 => Effect::VolumeSlide(Slide::FineDown(v - 75)),
+            85..=94 => Effect::VolumeSlide(Slide::Up(v - 85)),
+            95..=104 => Effect::VolumeSlide(Slide::Down(v - 95)),
+            105..=114 => Effect::PortaDown((v - 105) * 4),
+            115..=124 => Effect::PortaUp((v - 115) * 4),
+            128..=192 => Effect::SetPan(v - 128),
+            193..=202 => Effect::TonePorta(GMAP[(v - 193) as usize]),
+            203..=212 => Effect::Vibrato(0, v - 203),
             _ => Effect::NoEffect
         }
     }